Adding your card to Apple Pay is simple. You can add it either in the Level App or from the Wallet app.
To add in the Level App, go to the Account section and tap the ‘Add to Apple Wallet’ button just below your card.
To add from within the Wallet app,
On iPhone, open the app and tap the “+” sign in the top right corner of the screen then follow the instructions to add your card to your wallet.
For Apple Watch, open the Apple Watch app on your iPhone and select “Wallet & Apple Pay,” then tap “Add Credit or Debit Card.”
On iPad, go to Settings, open “Wallet & Apple Pay,” and select “Add Credit or Debit Card.”
On MacBook Pro with Touch ID, go to System Preferences, select “Wallet & Apple Pay,” then select “Add Card.”